Finding the Fourth Proportional to 172,276.96, 237,755.47 and 103,368.99
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Solution
The fourth proportional to 172,276.96, 237,755.47 and 103,368.99 is: 142,657.17
Step by Step Solution
- Step 1: Write the proportion equation
172,276.96 : 237,755.47 = 103,368.99 : x - Step 2: Convert to fraction form
172,276.96/237,755.47 = 103,368.99/x - Step 3: Cross multiply
172,276.96x = 237,755.47 × 103,368.99 - Step 4: Simplify right side
172,276.96x = 24,576,542,800.88 - Step 5: Solve for x
x = 24,576,542,800.88/172,276.96 - Step 6: Final answer
x = 142,657.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.